The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 05, 2024

Filed:

Jun. 08, 2023
Applicant:

Foresee Pharmaceuticals Co., Ltd., Taipei, TW;

Inventors:

Yuhua Li, Newark, DE (US);

Andrew J. Guarino, Newark, DE (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 38/09 (2006.01); A61K 9/00 (2006.01); A61K 47/22 (2006.01); A61K 47/34 (2017.01);
U.S. Cl.
CPC ...
A61K 38/09 (2013.01); A61K 9/0024 (2013.01); A61K 47/22 (2013.01); A61K 47/34 (2013.01);
Abstract

The present invention provides for a stabilized biodegradable polymeric composition useful as a controlled release delivery system for peptide agents. The compositions of the present invention comprise a) a strong acid salt and a weak acid of a LHRH agonist or antagonist; b) a biodegradable polymer of poly(lactide-co-glycolide), wherein the ratio of lactide:glycolide of the copolymer is from 50:50 to about 100:0; and c) N-methyl-2-pyrrolidone (NMP), wherein the composition does not contain excess strong acid in addition to the strong acid used to form the salt of the LHRH agonist or antagonist. The composition, when injected, can provide a controlled release of leuprolide for a period of up to 6 months.


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